There's a new resident in Castle Key - and somebody is watching him! Scott, Jack, Emily and Drift soon suspect that the new resident is an enemy spy. It explains the bullet-proof glass in the windows of his house. And the MI5 agent who is clearly keeping tabs on him!

But what is an enemy spy doing in Castle Key? Can the friends reveal his true identity? And uncover his top secret mission?

Join Scott, Jack, Emily and Drift as they investigate a man so mysterious he's almost invisible!

Jack, Scott, Emily and Drift the dog investigate the mysterious case of a spy in hiding in the tenth Adventure Island mystery.

About the Author

Helen Moss was born in 1964 and grew up in Worcestershire and Saudi Arabia. After a degree in psychology and philosophy at Oxford University, Helen went on to do PhD research at Cambridge University. She recently spent a year in Portland, Oregon, with her family, and on returning decided to switch direction and devote herself full-time to writing books for young readers. Helen lives in a small village outside Cambridge with her husband, two teenage sons, two border collies, two gerbils, several hens and a bearded dragon called Frankie.

Visit her website at http://www.helenmoss.org.uk and the Adventure Island website at http://www.adventureislandbooks.com.

Reviews
These are action-packed stories, full of suspense and excitement, and a really good read for 8 to 11 year olds who want a book that will grip them and take them away from our everyday world, but still have a realistic setting. * PARENTS IN TOUCH *
The plots are involving and intruiging. The mysteries are real and effectively planned, eith red herrings and twists to keep you guessing, while not being confusing for the child audience...I strongly recommend these for 8+ - and that absolutely includes adults. I love these books! * THOUGHTS FROM THE HEARTHFIRE *
a fun read - it has a fast paced plot with a good twist, likable characters and a dramatic ending. * BOOKAPOET *
This was a very good book suitable for boys and girls. A definite need read! -- Rachie * Guardian Online *



Book Information
ISBN 9781444005363
Author Helen Moss
Format Paperback
Page Count 192
Imprint Orion Children's Books
Publisher Hachette Children's Group
Weight(grams) 171g
Dimensions(mm) 200mm * 132mm * 16mm